JP4664941B2 - Temperature control booth - Google Patents

Description

  The present invention relates to a temperature control booth that is used to maintain only a limited necessary part in an atmosphere under a predetermined temperature condition in a place where various operations such as assembly of electronic parts are performed, and in particular, sufficient heat insulation. The temperature control booth is provided.

Conventionally, for example, a temperature control booth as shown in FIG. 3 has been put to practical use as a temperature control booth used to perform various operations such as assembly of electronic components under a predetermined temperature condition and in a clean atmosphere. Has been.
A temperature control booth 101 shown in FIG. 3 has a booth main body 102 having a chamber 110 into which temperature control air from an air temperature control device (not shown) is introduced, and a booth space 103 arranged around the booth main body 102. And a partition member 105 that partitions the space from the external space 104.
In the temperature control booth 101, the lower face plate of the chamber 110 is a blown face plate 121 made of a resin net (or punching metal), and a required number (one in FIG. 3 is one according to the blow area of the blow face plate 121). Air filter units 126 are arranged in the chamber 110, and the temperature-controlled air introduced into the chamber 110 is supplied to the air filters. The temperature is purified through the unit 126, and the purified temperature-controlled air can be blown out from the entire blow face plate 121 as a uniform downward flow.

By the way, in this temperature control booth 101, a single sheet material (for example, a curtain made of a synthetic resin sheet such as vinyl chloride resin) is used as a partition member 105 that partitions the booth space 103 and the external space 104. However, this single sheet material has a problem that the heat insulating effect is insufficient.
Thus, a space formed between the inner and outer sheet materials is formed by forming the partition member with a double sheet material (see, for example, Patent Document 1). Since the air inside does not flow, the temperature of the space changes depending on the temperature of the external space, so that the temperature of the booth space is affected and there is a problem that sufficient heat insulation cannot be obtained.
Japanese Patent Laid-Open No. 11-83104

  In view of the problems of the above-described conventional temperature control booth, an object of the present invention is to provide a temperature control booth having sufficient heat insulation.

In order to achieve the above object, a temperature control booth according to the present invention includes a booth main body having a chamber into which temperature controlled air from an air temperature control device is introduced at the top, and a booth space disposed around the booth main body. A double sheet comprising a partition member for partitioning with an external space, and introducing the temperature-controlled air from the air temperature control device into the booth space through the chamber , wherein the partition member is disposed inside and outside at a predetermined interval A space is formed between the inner and outer sheet materials by constituting the material, and a communication means for communicating the space formed between the inner and outer sheet materials and the chamber is provided, and the space formed between the inner and outer sheet materials and the booth space are provided. in a temperature control booth provided with communicating means for communicating the chamber, a downstream chamber which is arranged in the temperature adjustment downstream air side, it is arranged on the temperature control air flow upstream side, than the blowing area of the downstream chamber An upstream chamber having a blowout opening with a small blowout area, an air filter unit is interposed between the blowout opening and the downstream chamber of the upstream chamber, and temperature-controlled air is introduced into the downstream chamber. A diffusion plate in which a large number of holes for blowing out toward the booth space through the blow-out face plate is supported by a frame body in which opening portions for blowing out the temperature-controlled air toward the side are provided on the four side surfaces. Thus, a communication hole serving as a communication means for communicating the space formed between the inner and outer sheet materials and the chamber is formed in the chamber frame disposed on the outer peripheral portion of the downstream chamber so as to face the air filter unit. It is characterized by.

  In this case, the communication means for communicating the space formed between the inner and outer sheet materials and the booth space can be an opening formed by providing a gap between the lower end of the inner sheet material and the floor surface. .

  According to the temperature control booth of the present invention, the temperature control air is introduced from the chamber into the space between the inner and outer sheet materials by the communication means for communicating the space formed between the inner and outer sheet materials and the chamber, and the space between the inner and outer sheet materials. After the temperature-controlled air introduced into the space flows down the space, the temperature-controlled air is introduced into the booth space and merged with the temperature-controlled air blown out through the communication means that connects the space between the inner and outer sheet materials and the booth space, It is discharged into the external space through the gap between the sheet material and the floor surface. In this way, temperature-controlled air can flow down into the space formed between the inner and outer sheet materials, so that the temperature of the space formed between the inner and outer sheet materials can be reliably prevented from changing depending on the temperature of the outer space. It is possible to provide a temperature control booth having sufficient heat insulation.

The chamber includes a downstream chamber disposed on the downstream side of the temperature-controlled air flow and an upstream chamber disposed on the upstream side of the temperature-controlled air flow and having a blow-off opening having a blow-out area smaller than the blow-out area of the downstream chamber. An air filter unit is interposed between the outlet opening of the upstream chamber and the downstream chamber, and temperature-controlled air is blown out toward the booth space through the outlet face plate in the downstream chamber. A diffusion plate having a large number of holes is provided so as to face the air filter unit by supporting the diffused plate that blows out the temperature-controlled air toward the side by a frame body provided on four side surfaces, and on the downstream side. It is used by drilling a communication hole as a communication means for communicating the space formed between the inner and outer sheet materials and the chamber in the chamber frame arranged on the outer periphery of the chamber. The number of air filter units can be reduced compared to the conventional temperature control booth, and the temperature-controlled air purified through the air filter unit is diffused by the diffusion plate, so that a uniform downward flow flows from the downstream chamber toward the booth space. In addition, the temperature-controlled air from the downstream chamber can be more smoothly introduced into the space formed between the inner and outer sheet materials.

  Further, the communication means for communicating the space formed between the inner and outer sheet materials and the booth space is an opening formed by providing a gap between the lower end of the inner sheet material and the floor surface. While the sheet material expands to the outside due to the positive pressure in the booth space, the inner sheet material cancels out the influence of the positive pressure, so the inner and outer sheet materials do not come into contact with each other, and a predetermined space between the inner and outer sheet materials Can be ensured.

  Embodiments of a temperature control booth according to the present invention will be described below with reference to the drawings.

  1 to 2 show an embodiment of a temperature control booth according to the present invention.

The temperature control booth 1 shown in FIGS. 1A and 1B is also called a temperature control clean booth, and is arranged around the booth main body 2 and the booth main body 2 to partition the booth space 3 from the external space 4. And a partition member 5.
The booth main body 2 includes a chamber 10 disposed on the top of the booth main body 2 and four support columns 11 erected on the floor surface FL, and four corners of the chamber 10 are upper ends of the four support columns 11. Connected to each other.
In the temperature control booth 1, temperature-controlled air from the air temperature control device 15 is introduced into the chamber 10 via the duct 16, and the temperature-controlled air introduced into the chamber 10 is introduced into the booth space 3. It has become so.

The chamber 10 is a combination of a downstream chamber 10b disposed on the downstream side of the temperature control air flow and an upstream chamber 10a disposed on the upstream side of the temperature control air flow and connected to the duct 16.
As shown in FIG. 2, the downstream chamber 10 b includes a blowout face plate 21 made of a resin net (or punching metal) assembled to a square frame-like chamber frame frame 20, and a blowout face plate 21 above the blowout face plate 21. And a side plate 23 arranged in four directions so as to surround the space between the blow-out face plate 21 and the top plate 22.
The upstream chamber 10a is a box-shaped structure having a temperature-controlled air outlet opening 25 corresponding to a temperature-controlled air introduction opening 24 formed in the center of the top plate 22 in the downstream chamber 10b. The blowing area of the section 25 is set smaller than the blowing area of the downstream chamber 10b, that is, the blowing area of the blowing face plate 21.

Between the upstream chamber 10a and the downstream chamber 10b, the dust collection surface 26a faces the blowing opening 25 of the upstream chamber 10a, and the blowing surface 26b faces the introduction opening 24 of the downstream chamber 10b. An air filter unit 26 is interposed.
Thus, the temperature-controlled air introduced into the upstream chamber 10a from the air temperature control device 15 via the duct 16 is purified through the air filter unit 26, and the purified temperature-controlled air is sent into the downstream chamber 10b. ing.

In the present embodiment, as the air filter unit 26, only one air filter unit 126 that is basically the same as the air filter unit 126 used in the conventional temperature control booth 101 is used.
In the conventional temperature control booth 101, temperature-controlled air is directly introduced into the chamber 110 corresponding to the downstream chamber 10b of the present embodiment. The required number (six) of air filter units 126 must be combined and arranged so as to be divided into two vertically, but in this embodiment, the outlet area smaller than the outlet area of the downstream chamber 10b is provided in the downstream chamber 10b. An upstream chamber 10a having a blowout opening 25 is provided, and temperature-controlled air is once introduced into the upstream chamber 10a and then introduced into the downstream chamber 10b. As long as it corresponds to the opening area of the outlet opening 25 in the upstream chamber 10a, Compared with temperature control booth 101, it is possible to significantly reduce the number of used air filter unit.

Here, when it is necessary to increase the dust collection capacity with an increase in the rated air volume of the temperature-controlled air, an air filter unit having a height dimension larger than that of the air filter unit 26 is employed instead of the air filter unit 26. Thus, the dust collection capability can be increased without requiring a design change such as changing the opening area of the blowout opening 25.
At this time, if an increase in pressure loss becomes a problem, a blower having a required blowing capacity may be provided in the upstream chamber 10a.

A diffusion plate 30 is disposed in the downstream chamber 10b so as to correspond to the air filter unit 26.
More specifically, immediately below the introduction opening 24 in the top plate 22, the diffusion plate 30 having substantially the same area as the introduction opening 24 faces the blowout surface 26 b of the air filter unit 26, and the blowout thereof. Between the surface 26b and the blowing face plate 21, it arrange | positions at substantially equal intervals.
The diffusing plate 30 is configured by a flat plate in which a large number of holes 30a are formed at predetermined pitches in the vertical and horizontal directions. The diffusing plate 30 surrounds the introduction opening 24 of the top plate 22 and is suspended from the top plate 22 by an air filter unit 26. An opening portion 31a for blowing the cleaned temperature-controlled air toward the side is supported by a frame body 31 provided on the four side surfaces.

The partition member 5 is composed of double sheet materials 5a and 5b disposed inside and outside with a predetermined interval.
Thereby, a space 35 (hereinafter referred to as “inside / outer sheet material space 35”) is formed between the inner sheet material 5a and the outer sheet material 5b.
Both the inner sheet material 5a and the outer sheet material 5b are made of a curtain made of a synthetic resin sheet such as vinyl chloride resin, and the inner sheet material 5a is suspended from the inner periphery of the chamber frame frame 20 via a curtain rail assembly 36. On the other hand, the outer sheet material 5 b is suspended through a curtain rail assembly 36 by a curtain rail mounting bracket 37 projecting outward from the outer periphery of the chamber frame 20.

Here, the outer sheet material 5b has its vertical dimension set so that its lower end contacts the floor surface FL, while the inner sheet material 5a has a predetermined gap S between its lower end and the floor surface FL. The vertical dimension is set so as to exist.
Thus, by providing the gap S between the lower end of the inner sheet material 5a and the floor surface FL, an opening 40 as a communication means for communicating the inner and outer sheet material space 35 and the booth space 3 can be formed. .
Further, the outer sheet material 5b expands to the outside due to the positive pressure of the booth space 3, whereas the inner sheet material 5a cancels out the influence of the positive pressure, so that the inner and outer sheet materials 5a and 5b are not in contact with each other. The space 35 between sheet materials can be ensured reliably.

In the chamber frame frame 20, a communication hole 41 as a communication means for communicating the downstream chamber 10 b and the space 35 between the inner and outer sheets is formed in an intermediate portion between the inner periphery and the outer periphery as shown in FIG. It is drilled at a predetermined pitch over the entire circumference.
In this way, the temperature-controlled air in the downstream chamber 10b can be introduced into the space 35 between the inner and outer sheets through the communication hole 41.
The flow rate of the temperature-controlled air introduced into the inner and outer sheet material space 35 through the plurality of communication holes 41 can be adjusted by appropriately closing the communication holes 41 with a hole plug or the like.

In the temperature control booth 1 configured as described above, the temperature-controlled air adjusted to a predetermined temperature by the air temperature control device 15 is introduced into the upstream chamber 10 a through the duct 16.
The temperature-controlled air introduced into the upstream chamber 10a is purified when passing through the air filter unit 26, and the purified temperature-controlled air is blown into the downstream chamber 10b from the blowing surface 26b of the air filter unit 26.
The temperature-controlled air blown into the downstream chamber 10b from the blow-out surface 26b of the air filter unit 26 is blown to the diffusion plate 30, and the temperature-controlled air blown to the diffusion plate 30 has a part of the temperature-controlled air framed. The air is diffused in four directions through the opening portions 31 a provided on the four side surfaces of the body 31, and the remaining temperature-controlled air flows downward through the holes 30 a provided in the diffusion plate 30.
Thus, the temperature-controlled air is dispersed throughout the downstream chamber 10b.

Of the temperature-controlled air dispersed throughout the downstream chamber 10b, most of the temperature-controlled air is blown out as a uniform downward flow from the blowing face plate 21 toward the booth space 3, while a part of the temperature-controlled air is communicated. The temperature-controlled air introduced into the space 35 between the inner and outer sheet materials through the holes 41 flows into the space 35 between the inner and outer sheet materials, and then flows into the booth space 3 and flows into the booth space 3. And the temperature-controlled air blown out through the opening 40 serving as a communication means for communicating with the booth space 3, and is discharged to the external space 4 through the gap between the outer sheet material 5 b and the floor surface FL.
Thus, the temperature-controlled air can flow down into the space 35 between the inner and outer sheets, so that the temperature of the space 35 between the inner and outer sheets can be reliably prevented from changing depending on the temperature of the outer space 4, and sufficient Thermal insulation can be ensured.

  The temperature control booth 1 of the present embodiment is disposed around a booth body 2 having a chamber 10 (10a, 10b) into which temperature-controlled air from an air temperature control device 15 is introduced, and the booth body 2. In the temperature control booth, the partition member 5 includes a partition member 5 that partitions the booth space 3 from the external space 4 and introduces the temperature-controlled air from the air temperature control device 15 into the booth space 3 through the chamber 10. Is formed of double sheet materials 5a and 5b arranged inside and outside at a predetermined interval to form an inner / outer sheet material space 35, and the inner / outer sheet material space 35 and the downstream chamber 10b communicate with each other. The communication hole 41 is provided, and the opening 40 that communicates the space 35 between the inner and outer sheets and the booth space 3 is provided, so that the air in the space 35 between the inner and outer sheets flows and the space between the inner and outer sheets It is possible to prevent the temperature of the space 35 from changing due to the temperature of the external space 4 and to eliminate temperature unevenness, to substantially improve the heat insulating property of the partition member 5 and to have sufficient heat insulating property. be able to.

  As mentioned above, although the temperature control booth of the present invention has been described based on the embodiments, the present invention is not limited to the configurations described in the above embodiments, and the configurations are appropriately changed without departing from the gist thereof. It is something that can be done.

  Since the temperature control booth of the present invention has a characteristic that it has sufficient heat insulation, it can be suitably used for the use of the temperature control clean booth described in the examples, as well as one of the air in the booth space. Temperature control clean booth that circulates between the air temperature control device and temperature control booth without a filter (a part of the air in the booth space is circulated with the air temperature control device) It can be widely applied to various temperature control booths (including constant temperature booths) such as those, and these are not excluded.

It is a figure which shows the booth for temperature control of this invention, (a) is a front view, (b) is a top view. It is a figure which shows only the principal part by the AA sectional view taken on the line of Fig.1 (a). It is structure explanatory drawing of the conventional booth for temperature control.

DESCRIPTION OF SYMBOLS 1 Temperature control booth 2 Booth main body 3 Booth space 4 External space 5 Partition member 10 Chamber 10a Upstream chamber 10b Downstream chamber 15 Air temperature control device 25 Blowing opening 26 Air filter unit 30 Diffusion plate 35 Space between inner and outer sheet material 40 Opening Department (communication means)
41 communication hole (communication means)

Claims (2)

A booth body having a chamber into which temperature-controlled air from the air temperature controller is introduced at the top, and a partition member arranged around the booth body and partitioning the booth space from the external space, from the air temperature controller The temperature control air is introduced into the booth space through the chamber, and the partition member is formed of a double sheet material arranged inside and outside with a predetermined interval to form a space between the inner and outer sheet materials. In the temperature control booth provided with communication means for communicating the space formed between the inner and outer sheet materials and the chamber, and provided with communication means for communicating the space formed between the inner and outer sheet materials and the booth space , the chamber is: A downstream chamber disposed on the downstream side of the temperature-controlled air flow, and an upstream chamber that is disposed on the upstream side of the temperature-controlled air flow and has a blowout opening having a blowout area smaller than the blowout area of the downstream chamber. The air filter unit is interposed between the outlet opening of the upstream chamber and the downstream chamber, and the temperature-controlled air is blown out toward the booth space through the outlet face plate in the downstream chamber. The diffuser plate having a large number of holes is provided to face the air filter unit by supporting the diffused plate with the opening portion for blowing the temperature-controlled air toward the side, provided on the four side surfaces, and downstream. A temperature control booth characterized in that a communication hole as a communication means for communicating a space formed between the inner and outer sheet materials and the chamber is formed in a chamber frame arranged in the outer peripheral portion of the side chamber .   The communication means for communicating the space formed between the inner and outer sheet materials and the booth space is an opening formed by providing a gap between the lower end of the inner sheet material and the floor surface. The temperature control booth according to 1.

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